The WebLogic Server Administration Console

The Oracle WebLogic Server Administration Console is a Web browser-based, graphical
user interface you use to manage a WebLogic Server domain. A WebLogic Server
domain is a logically related group of WebLogic Server resources that you
manage as a unit. A domain includes one or more WebLogic Servers and may also
include WebLogic Server clusters. Clusters are groups of WebLogic Servers
that work together to provide scalability and high-availability for applications.
You deploy and manage your applications as part of a domain.

One instance of WebLogic Server in each domain is configured as an Administration
Server. The Administration Server provides a central point for managing a
WebLogic Server domain. All other WebLogic Server instances in a domain are
called Managed Servers. In a domain with only a single WebLogic Server instance,
that server functions both as Administration Server and Managed Server. The
Administration Server hosts the Administration Console, which is a Web Application
accessible from any supported Web browser with network access to the Administration
Server.